Publications by authors named "Montira Sriyai"
Modification of a Carboxymethyl Cellulose/Poly(vinyl alcohol) Hydrogel Film with Citric Acid and Glutaraldehyde Crosslink Agents to Enhance the Anti-Inflammatory Effectiveness of Triamcinolone Acetonide in Wound Healing.
Polymers (Basel)
June 2024
Article Synopsis
- This study focuses on using hydrogel materials for targeted drug delivery to enhance anti-inflammatory wound healing.
- Hydrogel films were created using carboxymethyl cellulose and poly(vinyl alcohol) with varying concentrations of crosslinkers (citric acid and glutaraldehyde) to optimize their properties.
- The optimized hydrogels featured improved structural characteristics that allowed for controlled drug release, leading to increased absorption and effectiveness of the anti-inflammatory drug triamcinolone acetonide.
With the increasing water consumption, water evaporators have been investigated for clean water production. Herein, the fabrication of electrospun composite membrane evaporators based on ethyl cellulose (EC), with the incorporation of light-absorption enhancers 2D MoS and helical carbon nanotubes, for steam generation and solar desalination is described. Under natural sunlight, the maximum water evaporation rate was 2.
View Article and Find Full Text PDFCarboxymethyl cellulose/poly(vinyl alcohol) blended films reinforced by buckypapers of carbon nanotubes and 2D material (MoS): Enhancing mechanical strength, toughness, and barrier properties.
Int J Biol Macromol
July 2023
Article Synopsis
- Plastic waste contributes significantly to climate change; biodegradable films made from polymers like carboxymethyl cellulose (CMC) are being developed as a solution.
- A new method has been introduced to enhance the strength and barrier properties of CMC/poly(vinyl alcohol) (PVA) films for packaging nonfood dried items by incorporating buckypapers with various carbon nanotubes.
- The resulting polymer composite films show increased tensile strength, Young's modulus, and toughness, as well as improved barrier performance against water vapor, while also demonstrating higher thermal stability.
Article Synopsis
- Nerve guide conduits (NGCs) for repairing peripheral nerve injuries are currently not efficient enough to replace autografts, leading to the development of advanced 3D electrospun scaffolds made from PLCL and PLGA.
- These scaffolds have been enhanced with polypyrrole (PPy), improving their biocompatibility, hydrophilicity, and conductivity, making them suitable for supporting nerve regeneration.
- Overall, the study indicates that the new 3D/E/PPy scaffolds exhibit better cell compatibility and lower tissue damage, showcasing potential for future use in peripheral nerve repair.
Article Synopsis
- A medical-grade poly(l-lactide--ε-caprolactone) (PLC) copolymer was created for surgical sutures, using a new tin(II) -butoxide initiator and a specific ratio of monomers to enhance absorbability.
- The fibers were manufactured through a process that included melt extrusion and heat treatment to improve their mechanical strength, achieving tensile strength similar to commercial products.
- The fibers were coated with levofloxacin for healing, showing effective controlled drug release over 30 days, strong antimicrobial properties against bacteria like MRSA, and were found to be nontoxic in cytotoxicity tests.
In this work, a novel poly (methylenelactide--L-lactide), P(MLA--LLA) graft copolymer was synthesized from poly(methylenelactide) (PMLA) and L-lactide (LLA) using 0.03 mol% liquid tin(II) -butoxide (Sn(OBu)) as an initiator by a combination of vinyl addition and ring-opening polymerization (ROP) at 120 °C for 72 h. Proton and carbon-13 nuclear magnetic resonance spectroscopy (H- and C-NMR) and Fourier-transform infrared spectroscopy (FT-IR) confirmed the grafted structure of P(MLA--LLA).
View Article and Find Full Text PDFNovel soluble liquid tin(ii) -butoxide (Sn(OCH)), tin(ii) -hexoxide (Sn(OCH)), and tin(ii) -octoxide (Sn(OCH)) initiators were synthesized for use as coordination-insertion initiators in the bulk ring-opening polymerization (ROP) of l-lactide (LLA). In order to compare their efficiencies with the more commonly used tin(ii) 2-ethylhexanoate (stannous octoate, Sn(Oct)) and conventional tin(ii) octoate/-alcohol (SnOct/ROH) initiating systems, kinetic parameters derived from monomer conversion data were obtained from non-isothermal differential scanning calorimetry (DSC). In this work, the three non-isothermal DSC kinetic approaches including dynamic (Kissinger, Flynn-Wall, and Ozawa); isoconversional (Friedman, Kissinger-Akahira-Sunose (KAS) and Ozawa-Flynn-Wall (OFW)); and Borchardt and Daniels (B/D) methods of data analysis were compared.
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